Sri Lanka to Nepal · 1,463 miles (2,354 km)

Colombo (CMB) to Kathmandu (KTM) flights

One airline flies nonstop from Colombo (CMB) to Kathmandu (KTM): SriLankan Airlines. The two airports are 1,463 miles (2,354 km) apart. SriLankan Airlines is in oneworld. There are also 6 ways to fly it with one stop, through Bengaluru, Dhaka and Mumbai and more.

See award prices Filter in Routes

Airlines flying nonstop from CMB to KTM

SriLankan Airlinesoneworld · bookable with 9 programsWho books it

Book CMB to KTM with points

Loyalty programs that can book at least one of the nonstop airlines, from the Award Booking Guide.

Alaska Atmos RewardsBooks SriLankan Airlines
American AAdvantageBooks SriLankan Airlines
British Airways ClubBooks SriLankan Airlines
Cathay Pacific Asia MilesBooks SriLankan Airlines
Finnair PlusBooks SriLankan Airlines
Iberia ClubBooks SriLankan Airlines
JAL Mileage BankBooks SriLankan Airlines
Qantas Frequent FlyerBooks SriLankan Airlines
Qatar Airways Privilege ClubBooks SriLankan Airlines

CMB to KTM with one stop

6 connections, most direct first. 2-stop routings and flight times are in Routes with Pro.

Via Bengaluru (BLR)IndiGo and SriLankan Airlines, then Nepal Airlines and Air India Express
RA
Via Dhaka (DAC)SriLankan Airlines and FitsAir, then Biman Bangladesh Airlines and Himalaya Airlines
8D
BG
H9
Via Mumbai (BOM)IndiGo the whole way
RA
Via Delhi (DEL)Air India and IndiGo the whole way
RA
Via Bangkok (DMK)Thai AirAsia, then Thai Lion Air
Via Bangkok (BKK)Thai Airways International the whole way
RA
H9

CMB to KTM: common questions

Which airlines fly nonstop from CMB to KTM?

SriLankan Airlines (oneworld) flies nonstop from Colombo (CMB) to Kathmandu (KTM).

How far is Colombo from Kathmandu by plane?

Colombo (CMB) and Kathmandu (KTM) are 1,463 miles (2,354 km) apart along the great circle, the shortest path a flight can take. Connections add distance on top.

Which points programs can book CMB to KTM award flights?

9 programs can book at least one of the nonstop airlines: Alaska Atmos Rewards, American AAdvantage, British Airways Club, Cathay Pacific Asia Miles, Finnair Plus, Iberia Club, JAL Mileage Bank, Qantas Frequent Flyer and 1 more. Which flights each can book depends on its partners, so check the airline before you transfer points.

How many miles does CMB to KTM cost?

It depends on the program: each prices the route from its own chart or dynamically. The Award Flight Pricer compares 30+ programs for CMB to KTM with taxes and fees.

Where can I connect between Colombo and Kathmandu?

The most direct connections are through Bengaluru (BLR), Dhaka (DAC), Mumbai (BOM), Delhi (DEL) and Bangkok (DMK). On 3 of them the same airline flies both flights, for example IndiGo through Mumbai.

More routes

KTM to CMB Every nonstop from CMB Every nonstop from KTM

CMB to Istanbul IST CMB to Paris CDG CMB to Frankfurt FRA CMB to Dubai DXB CMB to Shanghai PVG CMB to London LHR CMB to Guangzhou CAN CMB to Zurich ZRH CMB to London LGW CMB to Chengdu TFU CMB to Paris ORY CMB to Doha DOH

Routes are scheduled nonstop flights. The route data is refreshed monthly; this list was last checked November 11, 2026. Seasonal routes and new launches can be missing or end early, so confirm with the airline before you book. Distances are great-circle, the shortest path between the two airports.